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PXD Issues, Belle II DAQ/TRG Session Sören Lange (Giessen) 07.07.2009 27 Step #1: Conformal Map for Track Finding Case: reference point for all tracks on one track x 0, y 0 = this point this track missing hits! If one hit on track is used for conformal transformation, also a track not pointing (0,0,0) (e.g. secondary from  decay) generates a straight line in conformal space If one hit on track is used for conformal transformation, also a track not pointing (0,0,0) (e.g. secondary from  decay) generates a straight line in conformal space